Cage for ball-bearings.



' E. GESGHKE. GAGE FOR BALL BEARINGS. APPLIOATION FILED NOV.20,1907.

Patented Apr. 20, 1909.

Mum/5335s.

. those points where same srarns Par r aOFFIQE.

ERNST GESOHKE, OF CHARLOTTENBURG-BERLIN, GERMANY.

CAGE FOR BALL-BERING-S.

No. 918,096. Speoificationof Lettem Patent. Patented April 20, 1909.

Application flied November 20,- 1907. Serial No. 4o2',9ss.

-1ng's,of which the fbllowing is a full, clear,

and exact description.

The invention relates .to cages of that class for ball bearings whichessentially consist of a partitioned pressed body on which side lugsforming hollows or recesses are arranged and in which after insertingthe balls, the bending around of the lugs into their inclosing positionholds said balls in place.

Now the present'invention relates to an improvement in the constructionof cages of this class according to which the above mentioned lugs,which are bent around after inserting the balls for the purpose ofmaintaining the same in position. are formed from the walls of thepartition itself by stamping, pressing or in other suitable manner, Thusin this case the lugs are not formed on the partition but out of thebody of the cage itself which is utilized for the forming of the lugs atsiiid body can be weakened or perforated without any injury to thesolidity of the cage.

In the accompanying drawing two forms of cage constructed'according tothe present invention are shown in which:-'

Figure 1 is a side elevation of the race rings of a bearing fitted witha cage constructed according to the present invention, the balls beingshown in position Fig. 2 is a vertical transverse section thereof. Fig.v3 is a side elevation of the cage separately. Fig. 4 is a partsectional plan or development thereof ut showing the balls in position.Fig. 5 is a similar view to Fig. 3- illustrating a modification and Fig.6 is apart sectional plan or development thereof but showing the ballsin position.

Referring to Figs. 1 to 4, as far as regards the general construction ofthe cage, this, according to the present invention consists essentiallyof the part'tioned pressed body (1 with side lugs e said ugs e'beingformed on both sides of hollows or recesses formed in the/partitionedbody so that each pair of lugs e in the usual manner together with ahollow on itcessforin the compartments or pockets or the balls.

The method of construction of the hearing I [illustrated is of noimportance for the invention. The one illustrated is a so-called normalbearing and consists of two concen- 'tric race rings a and b betweenwhich the balls 0 roll, said balls being held at a uniform distance aart by means of the ca e. The lugs e in t is example are formed l rointhe pressed or stamped out of the middle thereof rections. The formingof said lugs is consequently an extremely simpleoperation. After thebody of the cage has been provided with hollows or recesses in a moldspecially constructed for that purpose and has been turned on its outerand inner edges to the exact diameter, the lugs e are pressed or stampedout at into the required position. After the bal s have been introducedthe lugs are then bent around the balls in the usual manner so that theyhold the balls in the pockets thus formed. Even if the lugs arerelatively short they nevertheless generally sufiice to maintain theballs in the pockets.

In the form of construction shown in Figs. 5 and 6, the lugs e are notformed from the body (1 of the cage between the hollows or recesses, butfrom the wall of the hollows or recesses themselves, but in otherrespects the construction of the cage is identical with thathereinbefore shown and described.

In some cases, and this is of great importance, the lugs may have aspringaction'by using suitable material or by tempering, so that theballs can be pressed in between the lugs previously bent around into theincloslugs they will spring back to their positions after the balls arein lace, so that the turning over of the lugs a ter the insertion of theballs is thus dispensed with.

The lu s can be-simultaneously stam ed or resser out and bent over intothe inc 0s m osition.

what I claim as my to secure by Patent is z, y 1. A cage for ballbearings comprising a rin bent to form circular sockets, one for can ofthe balls, said sockets being adapted to enga ethe balls on one side,and said ring having ugs cut out of the metal of the ring arid bent toengage 'the balls on the opposite si e.

invention, and desire 4.. 2. A cage for ball bearings'comprising a inthe form of two lugs bent in opposite (ii-- one operation and bent u ingposition, owing to the elasticity of the retaining body of the cagebetween the various hollows or recesses holding the balls, and arethereafter restore themselves to their retain- 111g positions.

3. A cage for ballbearings comprising a thin metal ring bent to formcircular sockets,

one for each of the balls, said sockets being adapted to engage theballs on one side, and said ring having lugs adapted to engage the ballson the opposite side, said lugs being made integrally With said ring,and being formed in pairs, each pair being adapted to extend betweenadjacent balls, and being bent in opposite directions to engage a ball.4. A cagefor ball bearings comprising a ring bent to form circularsockets, one for each of the balls, said sockets being adapted to engagethe balls on one side and said ring having its body out through to formelon-' gated lugs adapted to extend between the balls and engage thelatter on the opposite side to said ring.

5. A cage for ball bearings comprising a ring bent to formeircularsockets, one for each of the balls, said sockets being adapted to engagethe balls on one side and said ring having its body out through at suchcircular sockets to form elongated lugs adapted to extend between theballs and ei'igage the latter on the opposite side to said ring.

In Witness whereof, I have hereunto signed my name in the presence oftwo subscribing Witnesses.

. ERNST GESCHKE.

Witnesses:

WOLDEMAR HAUPT, HENRY HAsPER.

